Canna~Fangled Abstracts Cannabinoid CB1 receptor neutral antagonist AM4113 inhibits heroin self-administration without depressive side effects in rats. Acta Pharmacol Sin. 2018 Jul 2. doi: 10.1038/s41401-018-0059-x. He XH1,2, Jordan CJ1, Vemuri K3,4, Bi…Freedom WaresJuly 4, 2018